Answers:
1. -2y^3+9y-3y-16
2. 14x^3-23x^2+19x-24
Hi!
I'm really sorry but I'm not sure how to solve these equations however I have searched online and this is what it has said. I hope it is what you are looking for! I have attached screenshots of the working out above in order of each question. You may want to double check but the first two are for the first question and second two are for the second question.